calculation puzzle - Magic: the Gathering - Challenge #6.b: It's Gonna Cost You

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Background

Alright I'm going to try a more clear approach to my last attempted puzzle. Given the mana costs given below, name cards with those exact mana costs to use in a solution that wins this turn (the card chosen must match the exact mana cost printed on the card so e.g. RR can be a Wild Guess but not a Rolling Thunder or a kicked Shattering Spree). Once you decide what card is associated with a particular cost, it must stay the same card in all zones; all usual rules apply to the card once chosen so if you decide that 3B is a Heartstabber Mosquito, you can pay kicker as though it were that card. You can play any card face down as a basic land that makes any color mana (still only one land per turn)

Some addition rules:

• The same spell may not be named for multiple cards (e.g. even if you're only casting one copy of Dark Confidant, no other 1B card may be named as Dark Confidant)


• The same spell may not be cast more than once


• The Legacy banned list and rules should be observed (sorry Demonic Tutor)

Puzzle Setup

It's turn 1 and you're on the play. Let's assume that (magically) your opponent has no cards in hand. Win this turn with the rules given above and the mana costs given below. Both boards and graveyards are empty. Your solution must be a guaranteed win, not involving your opponent self-destructing (e.g. they choose 20 on a Choice of Damanations) or random chance (you Hymn to Tourach yourself and hit the right 2 cards). If multiple solutions are achieved, the one that does the most damage wins.

Your hand:

1B x 2
1
BBB
B x 3

Your library: (top to bottom)
B
1G
1WW
R
U

BB
G

Your opponent's library:
8GGG x 60